【摘要】：以某25萬t/a的混合烷烴脫氫裝置為背景,選取其中產(chǎn)物分離單元,采用Aspen Plus軟件對其進行了流程模擬,模擬結(jié)果與現(xiàn)場數(shù)據(jù)吻合良好。在此基礎上,利用夾點技術對現(xiàn)行工況的換熱網(wǎng)絡進行了夾點分析,在最小換熱溫差10℃條件下,現(xiàn)行換熱網(wǎng)絡冷熱公用工程的節(jié)能潛力分別可達11.61%和8.88%;優(yōu)化脫乙烷塔進料溫度后,節(jié)能潛力可分別提高至12.48%和9.60%。通過計算機模擬發(fā)現(xiàn)現(xiàn)行換熱網(wǎng)絡存在著跨越夾點換熱器。提出了換熱網(wǎng)絡優(yōu)化設計方案,優(yōu)化換熱網(wǎng)絡相比于原換熱網(wǎng)絡冷熱公用工程消耗量分別降低12.21%和9.39%。
[Abstract]:On the background of a 250000 t / a mixed alkane dehydrogenation unit, the product separation unit was selected and the process was simulated by Aspen Plus software. The simulation results were in good agreement with the field data. On this basis, the pinch analysis of the current heat transfer network is carried out by using the pinch technique. Under the condition of the minimum heat transfer temperature difference of 10 鈩，

本文編號：2266184